html,body{
    height: 100%;
    overflow-y: hidden;
}
.part2 .header{
    padding: 1.75rem 1.25rem;
    box-sizing: border-box;
    text-align: center;
    font-size: 2.25rem;
    background-color: #fff;
}
.part2 .header h3{
    font-weight: 600;
}
.part2 nav{
    position: relative;
    height: 5.5rem;
    border-bottom: .0625rem solid #F3F3F3;
    background-color: #fff;
}
.part2 nav ul{
    display: flex;
    width: 95%;
    margin: 0 auto;
    flex-wrap: nowrap;
    overflow: scroll;
}
.part2 nav ul::-webkit-scrollbar{
    width: 0;
}
.part2 nav ul li{
    margin: 0 .625rem;
}
.part2 nav li.active a{
    color: #FF9326;
    border-color: #FF9326;
}
.part2 nav ul a{
    display: block;
    white-space: nowrap;
    padding: .625rem;
    font-size: 1.5rem;
    border: 1px solid #B3B3B3;
    text-align: center;
    letter-spacing: .5rem;
    color: #B3B3B3;
    border-radius: .625rem;
}
.part2 .classify{
    display: flex;
}
.part2 .classify aside{
    height: 100%;
    width: 10.3125rem;
    font-size: 1.5rem;
}
.part2 .classify aside::-webkit-scrollbar{
    width: 0;
}
.part2 .classify aside ul{
    height: 100%;
    overflow:scroll;
}
.part2 .classify aside li{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 5.625rem;
    width: 100%;
}
.part2 .classify aside a{
    color: #999;
}
.part2 .classify li.active::after{
    position: absolute;
    left: 0;
    content: "";
    height: 5.625rem;
    width: .5rem;
    background-color: #FF9326;
}
.part2 .classify li.active{
    background-color: #fff;
}
.part2 .classify li.active a{
    color: #000;
}
.part2 .details{
    width: calc(100% - 10.3125rem);
    overflow: hidden;
    background-color: #fff;
}
.part2 .details .wrap{
    overflow: scroll;
    height: 100%;
}
.part2 .details section{
    display: none;
    flex-wrap: wrap;
    justify-content: space-between;
    align-content: flex-start;
    overflow: scroll;
    height: 150%;
    margin-top: 3.25rem;
}
.part2 .details section:first-child{
    display: flex;
}
.part2 .details section .item{
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 33%;
    margin: 1rem 0;
    font-size: 1.375rem;
    letter-spacing: .2rem;
}

.part2 .details section .img{
    height: 8.875rem;
}
.part2 .details section img{
    height: 90%;
    margin-bottom: 1.1875rem;
}
.part2 .details::-webkit-scrollbar{
    width: 0;
}

footer{
    position: fixed;
    bottom: 0;
    background-color: #fff;
    width: 100%;
    z-index: 999;
}
.footer{
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.5rem;
    padding: .6875rem 2.875rem;
}
.footer .item{
    display: flex;
    flex-direction: column;
    align-items: center;
}
.footer .item:nth-child(2) a{
    color: #FF9326;
}
.footer .item img{
    width: 2.625rem;
    margin-bottom: .75rem;
}

.margin40{
    margin-bottom: 2.5rem;
}